2940251 has 4 divisors (see below), whose sum is σ = 3068112. Its totient is φ = 2812392.

The previous prime is 2940247. The next prime is 2940263. The reversal of 2940251 is 1520492.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2940251 - 2² = 2940247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 127837 = 2940251 / (2 + 9 + 4 + 0 + 2 + 5 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2940271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63896 + ... + 63941.

It is an arithmetic number, because the mean of its divisors is an integer number (767028).

2^2940251 is an apocalyptic number.

2940251 is a deficient number, since it is larger than the sum of its proper divisors (127861).

2940251 is a wasteful number, since it uses less digits than its factorization.

2940251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127860.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2940251 is about 1714.7160114725. The cubic root of 2940251 is about 143.2610518313.

The spelling of 2940251 in words is "two million, nine hundred forty thousand, two hundred fifty-one".